Locomotive-cab seat



' (No Model.) 2 Sheets-Sheet 1.

B. M. STANNARD. LOGQMOTIVE CAB SEAT.

No. 444,654. Patented Jan. 13, 1891.-

WITNESSES:

A TTOHNEYS 1m: mama PETERS co, PNOYMITNQ, wnsmumou, n. c.

(No Model.) 2 Sheets-Sheet 2.

- E. M. STANNARD LOCOMOTIVE GAB: SEAT.

. No. 444,654. Patented Jan 13, 1891.

WITNESSES A fro/M 5 rs UNrrED STAT S PATENT OFFICE.

EDWARD M. STANNARD, OF APPLETON, \VISCONSIN.

.LOCOMO TlVE-CAB SEAT.

SPECIFICATION forming part of Letters Patent No. 444,654, dated January 13, 1891. Application filed lliarch 22, 1890- Serial No. 344,918. (No model.)

To all whom it may concern:

Be it known that I, EDWARD M. STANNARD, of Appleton, in the county of Outagamie and State of Wisconsin,have invented a new and Improved Locomotive-Cab Seat, of which the following is a full, clear, and exact descripion.

My invention has for its object to provide a simple, portable, inexpensive, and comfortable seat for the engineer of a locomotive which will relieve him of the jolting motions of the engine.

The invention consists in certain novel features of construction and combinations of parts of the seat or yielding-platform structure, all as hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming a part of this specification,

in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a plan View of the seat-frame and base-plate and connected parts of my improvement, the seat cushion and back being removed. Fig. 2 is a vertical sectional side view of the complete cab-seat, the, section being taken on the line 00 0c in Fig. 1. Fig. 3 is a perspective view of the lever-fulcrum headblock of the seat. Fig. 4: is a rear view of the lower portions of the cab-seat. Fig. 5 is a side view of the connection of the seat frame and back. Fig. 6 is a vertical sectional View thereof, taken on the line y y in Fig. 5. Fig. 7 is an outer end View of the back connection fulcrum clutch-bolt or bearing-pin. Fig. 8 is an enlarged or full-size view of the coupling which connects the levers to theseat-base. Fig. 9 is a full-size view of the coupling which connects the levers to the seat-frame, and Fig. 10 is a side view of one of the seat-levers.

My improved locomotive-cab seat, in the preferred style, is made with a base A, a frame B, supported yieldingly above it, an upholstered seat proper O on the frame, and an upholstered back D, adj ustably connected or coupled to the back of the seat-frame.

The seat-base A is preferably made of wood, and in the preferred construction it is centrally apertured and cut away or mortised at the bottom to receive a metal plate a, which has an upwardly-projecting boss at, around which is placed a suitable spring E, of either spiral or volute form, which rests on the plate and projects above the boss sufficiently to yieldingly or elastically support a metal block F, which has a downwardly-projecting stem or pin f entering and sliding vertically in a hole a of the boss a of the plate a. This part F, which I call the lever-fulcrum head-block, has a body portion having six flat faces preferably disposed to give it a rhomboidal general form, and from each side face projects horizontally a pin g, which forms the fulcrum of a lever G, which is coupled at one end to the base A and at the other end to the seat'frame B. The four levers G G G G are arranged in two parallel pairs connected at opposite ends with the base and seat-frame, respectively, one pair of levers being crossed by the other pair, as most clearly shown in Figs. 1 and 2 of the drawings. Suitable cotter or other pins g hold the levers thereon and snugly to the faces of the head-block. The levers have the general form shown in Fig. 10 to allow them to cross or to be crossed by each other, and have end hooks g The levers G may be coupled to the seat base and frame in any approved manner, allowing them to work freely as the seat proper moves up or down upon its sustaining-spring E. A very. simple and desirable coupling for connecting the levers to the base A consists of a metal plate H, which is formed at one end with an eye or half-eye h, which confines loosely a metal link J, with which one hooked end g of the lever engages, and a very good coupling for connecting the levers to the seat frame B consists of a metal plate I, havinga twisted or inclined eye or half-eye i, which confines a like metal link J, which engages the other hooked end of the lover. The coupling plates or castings II I have project ing lugs or lips h 6', respectively, which enter or lap onto the wood of the base and seatframe andre-enforce the holding-power of the screws which fasten the platesin place. (See Figs. 8 and 9 of the drawings.)

The wooden seat frame B is preferably reenforced at the corner-joints by horizontal metal plates 1), applied preferably at the lower edge of the frame, and also by verticallyranging angle irons or plates 1), applied at the corners of the frame and preferably lot in flush with its outer flCOS. 2 of the drawings.)

I secure to the seat-base A and the frame 13 the opposite edges of a flexible oiled cloth or other suitable fabric K, which excludes dust and dirt which otherwise would pass to the interior mechanism of the seat, and will yield or double upon itself more or less as the seat proper lowers by the weight on it or rises again as the weight allows or during vertical motion of the seat, due to the jolting of the locomotive, on the inside cab-box of which the seat is supported by its base A. Access is, however, freely given to the lever hcadblock and spring mechanism by hinging the board or foundation-piece c of the upholstered seat to one side of the seat-frame l3, preferably its front side, and by ordinary butthinges 0, let in [lush with the frame at recesses o 0 thereof. (Shown in Fig. 1 of the drawings.)

I provide a series, preferably four, of upright guides L, which are shown as brackets fixed to the base-board or platform A and rising at the inside of the seat-frame B, one at each side thereof. These guides or guards prevent swaying or pitching of the seat proper to either side or from front to back, while allowing free vertical yielding or play of said seat. The guides may have any other suitable form, providing they prevent swaying or pitching of the seat proper as it rides easily upon the levers, head-block, and spring.

As thus far described the cab-seat would be complete without a back; but I prefer to provide the adjustable back D, which may be set at any desired most comfortable i11- cline,or may be quickly removed at pleasure to allowpacking the seat into small compass, or to be entirelyout of the way of the reversing-lever of the locomotive when it is used as a shifting or siding engine while yarding cars or making up trains.

The upholstery of the seat-back D has a board or other foundation which includes opposite metal side pieces, preferably made as parts of an arched and elastic or yielding steel frame M, which for the most part stands flatwise in the plane of the back, but has lower ends m on twisted one-quarteraround and forked or each provided with a vertical slot 121, which straddles a squared or flat-sided lug 11, formed at the outer part of a clutchpin N, which is journaled in a bossed bearing plate or bracket 0, which is secured by screws or otherwise to the back of the scatframe B. The boss 0 of the bearing-plate O is provided with a face or rose clutch or halfclutch 0, which is adapted to be engaged by a corresponding half-clutch n',formed on the inner face or shoulder of the head of the clutch-pin. This pin or journal-bearing N is also provided on the outer face of its lug n with a screw or bolt end M, which is adapted to receive a clamp nut or wheel P,Which may be turned in against the forked ends m of the steel frame M, or against an interposed (See Figsd and washer p, to bind the seat-back fast at any desired adjustment. n

To adjust the seat-back 1.0 a different inelination, it is only necessary to turn back the set-screw or nut-wheel P at each bearing 0 far enough to allow the two journal-bearings N N to he slipped inward or toward each other sutliciently to disengage their clutches a n from the clutches o o of the bearings O, whereupon the seat-back, with its steel frame-forks m m yet engaging the st uds n n of the journals N N, which move w th it, maybe inclined more or less or read usted to the desired position, and the nuts or wheels 1 i will then be turned to draw the clutches again into engagement and also bind the seat-back frame or bar M securely to the brackets 0. To remove the back from the seatpropor, it is only necessary to slacken the nuts or wheels 1 on the bolt ends of, which allows the back-frame forks m to be lifted from the studs of the journals N, as will readily be understood.

It is manifest that the base and frameportions A 13, together with the equalizing-levers G and the fulcrum head-block F and spring E, are not limited to use as a locomotive-cab seat, as the same may be used as a platform-spring for vehicles, or as a welghing apparatus, or for other purposes.

Having thus described my lnvention, I claim as new and desire to secure by Letters Patent 1. A seat or yielding-platform structure comprising a supporting-base, a superposed yielding frame or part, a spring on the base, a head-block or support sustained by the spring, and crossed levers fulcrumed to the head-block and coupled at opposite ends to the base and superposed frame.

2. A seat or yielding-platform structure comprising a supporting-base, a superposed yielding frame or part, a spring 011 the base, a head-block or support sustained by the spring, crossed levers fulcrumed to the headblock and coupled at opposite ends to the base and superposed frame, and a flexible dustguard connecting said base and frame.

A seat or yieldingplatform structure comprising a supporting-base, a superposed yielding frame or part, a spring on the base, a head-block or support sustained by the spring, and two pairs of crossed levers fulcrumed to the head-block and coupled at op posite ends to the base and superposed frame.

4:. A seat or yielding-platform structure comprising a supporting-base, a superposed yielding frame or part, a spring on the base, a head-block or support sustained by the spring, crossed levers fulcrumed to the headblock and coupled at opposite ends to the base and superposed frame, and guides on the base for said frame.

5. The combination, in a seat or yieldingplatform structure, of a base, a bearing thereon, a spring fitted around said bearing, a head-block having a guide-pin entering the bearing and resting on the spring, and crossed levers fulcrumed to the head block and coupled at opposite ends to the base and superposed frame, substantially as described.

6. The combination, in a seat or yieldingplatform structure, of a supporting-base, a central apertured bearing, a spring and vertical guides on the base, a superposed yielding frame fitted to the guides, a head-block F, resting on the spring and having a stem f entering the central base-bearing, two pairs of crossed levers G G,fu1crumed to the headblock, and couplings connecting the opposite ends of the levers to the base and yielding frame, respectively, substantially as specified.

EDYVARD M. STANNARD.

\Vitnesses:

HENRY L. GoonWIN, O. SEDGWIOK. 

